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path: root/drivers/net/wireless/ath/carl9170/mac.c
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Diffstat (limited to 'drivers/net/wireless/ath/carl9170/mac.c')
-rw-r--r--drivers/net/wireless/ath/carl9170/mac.c129
1 files changed, 0 insertions, 129 deletions
diff --git a/drivers/net/wireless/ath/carl9170/mac.c b/drivers/net/wireless/ath/carl9170/mac.c
index 385cf508479..dfda9197099 100644
--- a/drivers/net/wireless/ath/carl9170/mac.c
+++ b/drivers/net/wireless/ath/carl9170/mac.c
@@ -455,135 +455,6 @@ int carl9170_set_beacon_timers(struct ar9170 *ar)
return carl9170_regwrite_result();
}
-int carl9170_update_beacon(struct ar9170 *ar, const bool submit)
-{
- struct sk_buff *skb = NULL;
- struct carl9170_vif_info *cvif;
- struct ieee80211_tx_info *txinfo;
- __le32 *data, *old = NULL;
- u32 word, off, addr, len;
- int i = 0, err = 0;
-
- rcu_read_lock();
- cvif = rcu_dereference(ar->beacon_iter);
-retry:
- if (ar->vifs == 0 || !cvif)
- goto out_unlock;
-
- list_for_each_entry_continue_rcu(cvif, &ar->vif_list, list) {
- if (cvif->active && cvif->enable_beacon)
- goto found;
- }
-
- if (!ar->beacon_enabled || i++)
- goto out_unlock;
-
- goto retry;
-
-found:
- rcu_assign_pointer(ar->beacon_iter, cvif);
-
- skb = ieee80211_beacon_get_tim(ar->hw, carl9170_get_vif(cvif),
- NULL, NULL);
-
- if (!skb) {
- err = -ENOMEM;
- goto err_free;
- }
-
- txinfo = IEEE80211_SKB_CB(skb);
- if (txinfo->control.rates[0].flags & IEEE80211_TX_RC_MCS) {
- err = -EINVAL;
- goto err_free;
- }
-
- spin_lock_bh(&ar->beacon_lock);
- data = (__le32 *)skb->data;
- if (cvif->beacon)
- old = (__le32 *)cvif->beacon->data;
-
- off = cvif->id * AR9170_MAC_BCN_LENGTH_MAX;
- addr = ar->fw.beacon_addr + off;
- len = roundup(skb->len + FCS_LEN, 4);
-
- if ((off + len) > ar->fw.beacon_max_len) {
- if (net_ratelimit()) {
- wiphy_err(ar->hw->wiphy, "beacon does not "
- "fit into device memory!\n");
- }
- err = -EINVAL;
- goto err_unlock;
- }
-
- if (len > AR9170_MAC_BCN_LENGTH_MAX) {
- if (net_ratelimit()) {
- wiphy_err(ar->hw->wiphy, "no support for beacons "
- "bigger than %d (yours:%d).\n",
- AR9170_MAC_BCN_LENGTH_MAX, len);
- }
-
- err = -EMSGSIZE;
- goto err_unlock;
- }
-
- i = txinfo->control.rates[0].idx;
- if (txinfo->band != IEEE80211_BAND_2GHZ)
- i += 4;
-
- word = __carl9170_ratetable[i].hw_value & 0xf;
- if (i < 4)
- word |= ((skb->len + FCS_LEN) << (3 + 16)) + 0x0400;
- else
- word |= ((skb->len + FCS_LEN) << 16) + 0x0010;
-
- carl9170_async_regwrite_begin(ar);
- carl9170_async_regwrite(AR9170_MAC_REG_BCN_PLCP, word);
-
- for (i = 0; i < DIV_ROUND_UP(skb->len, 4); i++) {
- /*
- * XXX: This accesses beyond skb data for up
- * to the last 3 bytes!!
- */
-
- if (old && (data[i] == old[i]))
- continue;
-
- word = le32_to_cpu(data[i]);
- carl9170_async_regwrite(addr + 4 * i, word);
- }
- carl9170_async_regwrite_finish();
-
- dev_kfree_skb_any(cvif->beacon);
- cvif->beacon = NULL;
-
- err = carl9170_async_regwrite_result();
- if (!err)
- cvif->beacon = skb;
- spin_unlock_bh(&ar->beacon_lock);
- if (err)
- goto err_free;
-
- if (submit) {
- err = carl9170_bcn_ctrl(ar, cvif->id,
- CARL9170_BCN_CTRL_CAB_TRIGGER,
- addr, skb->len + FCS_LEN);
-
- if (err)
- goto err_free;
- }
-out_unlock:
- rcu_read_unlock();
- return 0;
-
-err_unlock:
- spin_unlock_bh(&ar->beacon_lock);
-
-err_free:
- rcu_read_unlock();
- dev_kfree_skb_any(skb);
- return err;
-}
-
int carl9170_upload_key(struct ar9170 *ar, const u8 id, const u8 *mac,
const u8 ktype, const u8 keyidx, const u8 *keydata,
const int keylen)